p{
  color:red;
  background-color: aqua;
  height: 50px;
  width: 200px;
}
/* #号对应id */
#second{
    color: black;
    width: 100%;
}
/* .号对应class */
.type1{
    color: red;
}
.type2{
    color: yellow;
}
.type2[top]{
    background-color: black;
    font-size: 22px;
}
/* div[myid]{
    color:blue
} */

a:hover{
    color: red;
}
a{
    color: aqua;
}